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BEAM P
LUS FOR
E
XISTING
B
UILDINGS
A
PPENDICES
V
ERSION
1.2
8.1 A
NNUAL
E
NERGY
U
SE
Copyright © 2012 BEAM Society Limited. All rights reserved.
A - 5
Public Housing Private
Housing
Industrial,
commercial,
and other
building types
< CFA
14,000sqm
Industrial,
commercial,
and other
building
types > CFA
14,000sqm
Cooling
Generation
Unitary
air-
conditioner,
non-split-type
Unitary
air-
conditioner,
split-type
Unitary
air-
conditioner,
split-type
Chiller*
Terminal type
N/A
N/A
N/A
VAV
Heat Rejection Air-cooled
Air-cooled
Air-cooled
Water-cooled
Reference should be made to the latest BEC on the performance of
individual components of the systems
*For buildings with area less than 20,000 sqm – 2 water-cooled screw
chillers sized equally, for buildings with area more than 20,000 sqm – 2
water cooled centrifugal chillers minimum with chillers added so that no
chiller is larger than 2800 kW, all sized equally
Figure 8.1
Building energy performance assessment
(SIMULATION)
SHAPE AND DIMENSIONS, MIX OF AREAS
AND TYPES OF PREMISES SAME AS
ASSESSED BUILDING
DEFAULTS CHARACTERISTICS:
BARELY MEET MINIMUM PERFORMANCE
CRITERIA IN CODES/STANDARDS OR
‘BASIC’
PREDICTED ENERGY USE AND PEAK
ELECTRICITY DEMAND
ASSESSMENT OF ANNUAL ENERGY USE AND PEAK ELECTRICITY
DEMAND
ZERO-CREDIT BENCHMARKS FOR
ANNUAL ENERGY USE
AND
PEAK ELECTRICITY DEMAND
ASSESSED BUILDING
ANNUAL ENERGY USE
AND
ELECTRICITY PEAK DEMAND
OF THE ASSESSED BUILDING
AS ASCERTAINED FROM
ENERGY BILLING/METERING
RECORDS
PERCENTAGE REDUCTION IN ANNUAL ENERGY USE
AND PEAK ELECTRICITY DEMAND (WHERE APPLICABLE)
ANNUAL ENERGY USE CREDITS
PEAK DEMAND CREDITS (WHERE APPLICABLE)
AWARDED FOR THE ASSESSED BUILDING
FACTORS FOR REDUCTION IN ANNUAL
ENERGY USE AND PEAK DEMAND